Specialized manufacturer of Digital Pressure Meters and Load Cells

VALCOM CO.,LTD.

 

Graphic Multi Meter
VLGM series


Use in combination with pressure sensors or load cells.

Have you ever felt you wanted to see the changes in load as waveform?

Color LCD graphic touch screen adopted!!

  • Measures the changes in load in real time. This helps to identify the cause of trouble and avoid the problem smoothly.
  • Not only waveform but also displacement can be compared, which enables measurement while keeping the load value even when stopped.
  • Includes the inflection point hold function to detect "the peak of initial pressure" and "the end of process". This increases the certainty of Go/No-Go judgment.
  • Use of SD card allows data to be input or analyzed easily and quickly.
  • Besides 2 input channels of "strain gauge + process", "strain gauge + pulse" has been added newly.

Features of VLGM on movie

Press either of the buttons below to see the movie of "Press-fitting of pin" and "3D demonstration of VLGM."

Low-definition (MP4/3.54MB)High-definition (MP4/8.84MB)

Input can be compared between waveforms or between waveform and displacement.

Input can be compared between waveforms or between waveform and displacement.

■Setting the tolerance range via the LCD screen enables visual alarm between the higher and lower limits of waveforms, and highly accurate digital results of judgment. Interlocking with displacement is also possible. In waveform comparison, analog input waveform that changes with time or displacement is converted to digital, and the converted value (displayed value) is compared with the preset higher/lower limit values and the result is output. Up to 8 patterns of higher/lower limit waveform values, areas to be compared and higher/lower limit displacement values can be stored in memory. They can be switched easily via the pattern select signal or RS communication function.

Selectable display: Ch. A, Ch. B or both

Selectable display: Ch. A, Ch. B or both

■Display can be switched among channel A for input from strain gauge, channel B for analog process signal input or pulse input (selectable), and both channels. Not only the results of respective measurements, but also the tolerance range and results of comparison can be constantly shown in colors for easy understanding. Up to 16 patterns of set values of calibration, scaling and comparative outputs can be stored in memory.

High-speed processing of 4000 samples/s(when using 1 channel)

■VLGM series enables high-speed sampling of 4000 samples per second (when using 1 channel).
This also enables comparative judgment on the systems of faster tact time. Thanks to detailed data sampling, waveforms of measurement can be plotted realistically.(When two channels are used simultaneously, sampling rate will be 2000 samples/s.)

Abundant hold functions

■VLGM series has abundant hold functions. Inflection hold that enables measurement immediately before the end of processing can show the loads that are vital for press-fitting or caulking.
Besides the basic hold functions such as sample hold, peak hold, and valley hold, it is also possible to combine hold functions, and to add the hold functions for specifying term and time to the basic functions.

Equipped with SD memory card slot

Equipped with SD memory card slot

Using SD memory card, the data collected on site or during business trip can be analyzed offline. It is also possible to edit the collected data or to set the loaded waveform as higher or lower limit value on the VLGM using the Analyzer (application dedicated to the models with SD slot). Use of the Configurator window saves the users from having to input data.

Model Selection

Example

Selection Cheak Model Specifications
1.Model VLGM Graphic multi-meter
2.Input Unit - - Ach Bch
  GV Strain gauge input (350Ω)
Input signal range: ±4.0mV/V,
Input calibration range 0.1–3.0mV/V
Process input range:
0–10V, 4–20mA, ±0–20mA
  GP Pulse input Maximum input frequency
50kHz Range of inner count:
-20000–14080000
3.Output Unit   RS RS-232C
  R1 RS-485
  RB BCD output (open collector output NPN type) +RS-232C
  RA Analog output (0–±10V, 4–20mA) +RS-232C
4.Power 7 AC100–AC240V (±10% [50/60Hz])
5.SD memory card function   0 Without SD memory card function
  1 With SD memory card function [End of production at the end of March 2019]

Input Specifications

Input unit (Ach)
Sensor power supply DC10V, 5V, 2.5V (±10%) Output 120mA or less
Conforming sensor Strain gauge type sensors (4-wire type) (Up to four 350Ω strain gauge type can be connected in parallel.)
Input signal range -4.0mV/V–+4.0mV/V
Input calibration range
(SPIN value)
Input calibration range 0.1–3.0mV/V
Displayed (load) range
(SPAN set value)
100–30000 (at minimum input sensitivity)
Minimum input sensitivity 0.25µV/digit (at sensorpower supply of 2.5V), 0.5µV/digit(at sensorpower supply of 5.0V), 1.0µV/digit (at sensorpower supply of 10.0V)
Nonlinearity Within ±0.02%F.S.+1digit (at 3mV/V input) (23°C±5°C)
Equivalent calibration error Within ±0.2%F.S.
Temperature coefficient ±0.005%of rdg+0.5digit/°C
Analog filter Select from among 10, 30, 300, 600 (Hz)
Input unit (Bch: Process input)
Instrumentation input(*) Range Measuring range Display Input impedance Maximum permissible input Accuracy
0–10 ±0–10V Based on digital scaling
Offset 0–10000
Full scale 0–10000
1MΩ ±250V ±0.1%F.S.+1digit
4–20 4–20mA 50MΩ ±70mA ±0.2%F.S.+1digit
0–20 ±0–20mA
23°C±5°C (35–85%RH)
Nonlinearity Whitin ±0.02%F.S.+1digit (at 3mV/V input) (23°C±5°C)
Temperature coefficient ±0.005%of rdg+0.5digit/°C
Analog filter Select from among 10, 30, 300, 600 (Hz)
  • *Range can be specified on front touch panel screen
Input unit (Bch: Pulse input)
Maximum input frequency 50kHz
Range of inner count -20000–14080000
Conforming Rotary encoder (specification of rotary which is able to be connected to the meter)
Output: 2 Phase (output of A,B signal)
Specification of output circuit:
①Open collector type
②Line driver output (Conform to RS-422)
*Only one of 1) or 2)
Power supply for sensor: None
Measurement and functions (common to Ach/Bch)
Operation method Δ∑ conversion method
Sampling speed (4000, 2000, 1000, 500, 200, 100, 50, 20, 10) times/sec
Maximum sampling speed at 1ch 4000times/sec, (at 2ch 2000times/sec)
Display updating cycle (12.5, 6.25, 2.5, 1, 0.5) times/sec
Moving average OFF, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 (times)
Maximum indication ±99999 (full 5-digit figures)
Display unit STN color LCD (320×240 dots)
Display range (Approx. 74×55mm)

Analog voltage output for monitors

Ach Strain gauge input, ±4.0mV/V → Approx. ±6V
Bch Instrumentation input, ±0–10V → Approx. ±5V, ±0–20mA → Approx.±5V

Comparison function

Comparison function
Setting range ±99999
Hysteresis ±0–9999 (Not uesd in comparison output type "Area")
Type of comparison output Select from among Normal, Area and Rank
Comparison output 5kinds (HH, HI, GO, LO, LL)
Photo-coupler output NPN open collector output(including waveform comparison/Waveform & Displacement comparison)
Output capacitance: voltage MAX.30V, Current MAX.20mA
Waveform comparison function
Waveform comparison function Set HI/LO limit set calue of 2048 point per pattern (up to 8 atterns can be set)
After starting, this function serves to check whether indicated value is within HI/LI
limit set value or not for comparison in real time and outputs results.
Waveform Comparison (X-axis=time) Comparison output=Y-axis HI,GO,LO
Waveform & Displacement Comparison (X-axis=displacement) Comparison output=Y-axis HI,GO,LO, X-axis HI,LO (displacement output)

Output function

RS-232C output Various settings are available from host computer. In addition, it is possible to read operating state.
RS-485 output Up to 31Meters can be connected to host computer
BCD output Open collector output (NPN type) ◇Output capacitance Voltage MAX.30V, Current MAX.15mA
(Output cycle is based on sampling speed)
◇Output signal BCD, OVER, POL, PC, ◇Input signal ENABLE
Analog output D/A converter used (Channel to be output is selectable) ◇Resolution Approx. 16bits
Output Load resistance Accuracy Ripple
±0–10V 10kΩ or more ± (0.5% of F.S.) 50mp-p
4–20mA 550Ω or less ± (0.5% of F.S.) 25mp-p
◇Accuracy (23°C±5°C, 35–85%RH)

Common Specifications

Backup Each data setting=Flash ROM (Written in at completion of setting)
Digital zero value and display screen=Holds for about two weeks from powering off with
secondary battery. (Full charging time of secondary battery: About 80hours)
Data setting method Htrough each setting menu and touch panel or RS-232C/485
Power supply AC100–AC240V ±10% (50/60Hz)
Power consumption Approw. 32VA (MAX)
Dimensions 100mm(W)×96mm(H)×153mm(D)
Operating temperature humidity 0–40°C, 35–85%RH (No condensation)
Weight Approw. 1.0kg
Dielectric strength One minute at 500V/1mA DC applied between input (AG)/comparison output (E.COM),
RS-232C/485 (SG), BCD output (D. COM),analog output (COM)One minute at 1500V/3mA AC
applied between power supply/protect ground terminal.
One minute at 500V/1mA applied between protect ground terminal/input (AG),comparison output (E.COM),
RS-232C (SG), BCD output (D. COM),analog output (COM)
Insulating voltage 500V DC More than 100MΩ at each of above-mentioned terminal

Dimensions (Unit: mm)

External dimensions

Connection of Power Supply, Terminals No.3 (M3) and terminal No.4 (M4)

Terminal connection

Terminal Connections (Bch.Process input Compatible models)

Terminal Connections (Bch.Process input Compatible models)

○Input voltage is AC100V–240V ±10% (50/60Hz)

*Cautions
Use the screw terminal for I/O units at the time of analog output or RS-485
Use a connector of card edge type ribbon cable at the time BCD output,instead of the
Conforming cable: UL2651AWG#28 flat cable (7 cables/0.127mm, cable shield diameter 0.8 to 1.0mm)
When you have no memory card function, there is no SD cover of the front upper part.

Terminal Connections (Bch.Pulse input Compatible models)

Terminal Connections (Bch.Pulse input Compatible models)
Name Function
①-1 Power supply terminal There are the device power supply terminals
①-2 Protective ground terminal This is ther protective ground terminal (JIS Class 3 grounding)
①-3 Short bar This connects the functional ground terminal and frame terminal
①-4 Ventilation holes These holes prevent the device from overheating
② Input terminal (Ach) There are for connecting various types of strain gauge, sensors and other extemal input/output devices
③ Input connector There are for connecting various types of displacement sensor (rotary encoder) and other extermal input/output devices
④ Control connector This is for connecting external control devices for external input/output control
⑤ RS-232C connector This is for connecting to a host PC via a serial cable for performing input/output control
⑥ Mounting bracket This is for fixing the device in place when mounting it to a panel

Analog (Option)

Analog (Option)
Output Voltage Current
range 0–±10V 4–20mA
Load resistance 10kΩ or less 550Ω or less
Accuracy ±0.5% of F.S. ±0.5% of F.S.
Ripple 50mVp-p 25mVp-p

*Accuracy within the range of 23°C±5°C/35–85%RH
*The NC terminal is unsed, but do not use it as a junction terminal
*Use crimp terminal for the connections

BCD output (option)

BCD output (option)

Hirose Electric Co., Ltd:
HIF5C-50DA-2.54R
Conforming wire:
UL2651/AWG#28

1 1 11 400 21 POL 31 NC 41 NC
2 2 12 800 22 OVER 32 NC 42 NC
3 4 13 1000 23 ENABLE 33 D.COM 43 NC
4 8 14 2000 24 ENABLE 34 D.COM 44 NC
5 10 15 4000 25 PC 35 NC 45 NC
6 20 16 8000 26 NC 36 NC 46 NC
7 40 17 10000 27 D.COM 37 NC 47 NC
8 80 18 20000 28 D.COM 38 NC 48 NC
9 100 19 40000 29 +COM* 39 NC 49 NC
10 200 20 80000 30 NC 40 NC 50 NC

*Signal name "NC"is blank terminal, but do not use it as relay terminal.
*Signal name "+COM" connect to positive side of external power supply.

RS-232C conversion connector with Bch pulse input

RS-232C conversion connector with Bch pulse input

Connection diagram Ach.Process input, Bch.Process input Compatible models

Ach./Process input

Ach./Process input
Analog Input output screw terminal
Terminal No. Singal name Contents
8 FG Frame ground
7 +SIG +Input terminal (Ach)
6 −SIG −Input terminal (Ach)
5 −EXC −Sensor power supply output terminal (−side) (Ach)
4 +EXC +Sensor power supply output terminal (+side) (Ach)
3 A·IN +Current input (Bch)
2 V·IN +Voltage input (Bch)
1 AG −Analog ground (Bch)

Bch./Process input

Bch./Process input

*The NC terminal is unsed, but do not use it as a junction terminal

Compatible connectors are accessories
Connector type name: 17JE-23150-02/DDK
Holder type name: 17JE-15H-1C/DDK

I/O control connector

I/O control connector

Connector (Techinical electron co.,Ltd.)
E25-403E-150/With a case

Pin No. Signal name Contents Pin No. Signal name Contents
1 (O) OUT1 Comparison output 14 (O) AOUT A Analog ouptut(Ach)
2 (O) OUT2 Comparison output 15 (O) AOUT B Analog ouptut(Bch)
3 (O) OUT3 Comparison output 16 (*) AG Analog ground
4 (O) OUT4 Comparison output 17 (O) BUSY BUSY output*
5 (O) OUT5 Comparison output 18 (I) P0 Pattern selection
6 (O) Error Error signal 19 (I) P1 Pattern selection
7 (O) SYNC Synchronizing signal output 20 (I) P2 Pattern selection
8 (*) E.COM Photo-coupler output common 21 (I) P3 Pattern selection
9 (I) STA Start/Peak hold(Ach) 22 (I) START Graphic start
10 (I) STB Start/Peak hold(Bch) 23 (I) STOP Graphic stop
11 (I) DZA Digital zero(Ach) 24 (I) RESET Reset
12 (I) DZB Digital zero(Bch) 25 (I) DG Digital ground
13 D6 Digital ground      

*(O), (I) in the above table show the direction of a signal.(O)=output adn(I)=input
*BUSY output is used when SD memory card function is available

Connection diagram Ach.Strain gauge input, Bch.Pulse input Compatible models

Ach./Strain gauge input

Ach./Strain gauge input
Analog Input output screw terminal
Terminal No. Signal name Contents
7 FG Frame ground
6 +SIG +input terminal (Ach)
5 −SIG −input terminal (Ach)
4 −EXC −Sensor power supply output terminal (−side) (Ach)
3 +EXC +Sensor power supply output terminal (+side) (Ach)
2 NC  
1 NC  

Bch./Pulse input (D-sub15P Female)

>Bch./Pulse input (D-sub15P Female)

Compatible connectors are accessories
Connector type name:
17JE-23150-02/DDK
Holder type name:
17JE-15H-1C/DDK

Terminal No.   Descriptions
1 ORIGIN+
ORIGIN+input Line driver type
2 ORIGIN− ORIGIN−input Line driver type
3 B+ B Phase+input Line driver type
4 B− B Phase−input Line driver type
5 A+ A Phase+input Line driver type
6 A− A Phase−input Line driver type
7 NC Vacant terminal
8 NC Vacant terminal
9 COM GND COMMON Common GND
10 ORIGIN ORIGIN input Open collector or voltage
11 B B Phase input Open collector or voltage
12 A A Phase input Open collector or voltage
13 NC Vacant terminal
14 NC Vacant terminal
15 NC Vacant terminal

*NC,AUX terminal is not use as a junction terminal

I/O Control connector

I/O Control connector

Compatible connectors are accessories
Connector type name:
10126-3000PE
3M Japan Limited
Holder type name:
10326-52FO-008
3M Japan Limited

Pin No. Signal name Contents Pin No. Signal name Contents
1 (O) OUT1 Comparison output (NPN)
14 (O) A-OUTA
Analog output (Ach)
2 (O) OUT2 Comparison output (NPN) 15 (O) AG Analog output (Ach) GND
3 (O) OUT3 Comparison output (NPN) 16 NC Vacant terminal
4 (O) OUT4 Comparison output (NPN) 17 (I) P0 Pattern selection
5 (O) OUT5 Comparison output (NPN) 18 (I) P1 Pattern selection
6 (O) ERROR ERROR signal (NPN) 19 (I) P2 Pattern selection
7 (O) SYNK Synchronizing signal output (NPN) 20 (I) P3 Pattern selection
8 (O) BUSY *Busy output (NPN) 21 (I) GSTART Graphic start
9 (O) E.COM Open collector output common 22 (I) GSTOP Graphic stop
10 NC Vacant terminal 23 (I) RESET Reset
11 (I) STA Hold (Ach) 24 (I) DZA Digital zero(Ach)
12 (I) STB Hold(Bch) 25 (I) DZB Digital zero(Bch)
13 (I) DG Digital ground 26 (I) DG Digital ground

*(O), (I) in the above table show the direction of a signal.(O)=output adn(I)=input
*BUSY output is used when SD memory card function is available

Input/Output signal funciton

  Comparison output
OUT1 No.1 OUT2 No.2 OUT3 No.3 OUT4 No.4 OUT5 No.5
Function Ach Meter HH HI GO LO LL
Ach Meter HH HI GO LO LL
Ach Meter HI (Ach) LO (Ach) GO (*1) HI (Bch) LO (Bch)
Waveform Compare Ach HI (Ach) LO (Ach) GO (Ach) HI (Bch) — · —
Waveform Compare Ach — · — — · — GO (Ach) — · — LO (Bch)
Waveform & Displacement comparison HI (Ach) LO (Ach) GO (Ach) HI (Bch) LO (Bch)

*1 It turns ON only when all of HI and LO of both channels are OFF

Conforming crimp-type terminal size

Conforming crimp-type terminal size

Connection of RS-232C

Ach./Strain gauge input
Bch.Process input

Connection of RS-232C

Compatible connectors (Hirose Electric Co., Ltd)
Crimp type CDE-9S (9 pin)
Solder type HDEB-9S (9 pin)

Terminal No. Signal name Contents
1 NC Vacant terminal
2 RXD Receiving Terminal
3 TXD Transmitting Terminal
4 NC Vacant terminal
5 SG Signal ground
6 NC Vacant terminal
7 RTS Request to send
8 CTS Permit to send
9 NC Vacant terminal

Ach./Strain gauge input
Bch.Pulse input type

RS-232C connector (Square type)

(10 pin rectangular connector)
36210-0100
(connector cover)
36310-3200-008

Compatible connectors are accessories
(Refer to RS-232C conversion connector)
Connector type nam: 36210-0100 JL/3M Japan Limited
Holder type name: 36310-3200-008/3M Japan Limited

Terminal No. Singal name Contents
1 SG Signal ground
1 NC Vacant terminal
2 RXD Receiving Terminal
4 NC Vacant terminal
5 RTS Request to send
6 NC Vacant terminal
7 TXD Transmitting Terminal
8 NC Vacant terminal
9 CTS Permit to send
10 NC Vacant terminal

This meter use 5 wire: Receiving Terminal (RXD), Transmitting Terminal (TXD), Request to send (RTS), Permit to send (CTS), and Signal Ground (SG),other control signals are not used.

Connection of RS-485 (option)

Screw terminal for I/O units

Screw terminal for I/O units
Terminal No. Direction of signal Singal name Contents
1 Input output + Non-inverted output
2 Input output Inverted output
3 - SG Signal ground
4 - TERM1 Terminal resistance1 for connection *1
5 - TERM2 Terminal resistance2 for connection *1
6   NC *2
7   NC *2
8   NC *2
9   NC *2
10   NC *2

*1 NC is blank terminal, but do not use it as relay terminal
*2 When terminal No.4 and terminal No.5 are short-circuited externally, termination resisitance is connected
between lines (Terminal resistance 150Ω)

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